Mechanical Seals Blog

"In alignment with the overall mission of the FSA, its Mechanical Seal Division seeks to be recognized by customers, regulatory bodies, and FSA member companies as the primary source of technical information for sealing solutions and their application in all matters relating to standards and education. Through our efforts, we will enhance the reliability and effectivity of this critical technology."    
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Overview of Multiple Lip Seals

Multiple lip seals are commonly used in centrifugal pumps and positive displacement pumps. There are many variations, but one version that has been particularly effective is a triple lip seal arrangement. The key feature is the third outboard lip seal element, which can be used for several functions.

Sealed media can be compartmentalized, providing the opportunity to apply any of the API piping plans based on the type of media being sealed. For instance, it can serve as an excluder or a secondary seal in a quench gland design for media that crystallizes or hardens with exposure to ambient temperature and pressure. Unlike a mechanical face seal, there are no rotating parts, and all internal components are not just replaceable, but replaceable on-site by in-house or field maintenance staff.

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